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106                                   FLOUA INDICA.                         \Anonacea.

This genns was established as a section of PotyaUhia by -Blame, who, however,
only described one species. It is so well marked, both in characters and habit, that
we have no hesitation in regarding it as a distinct genus. The thick, strictly val-
vate, and broadly- clawed inner petals, closely connivent into a mitriform cap, occur
in no other genus. The nearest approach to this structure is found in Qzymitra
among Gttatterieai ; but there the inner petals are not unguiculate. The species of
Goniothalamus appear for the most part to be undershrubs, rarely rising to the size
of trees. The leaves of many are very thick and coriaceous ; but the thinner-leaved
species and the young leaves of the others are pellucid-dotted. The nervation is pe-
culiar, the principal veins being connected by loops, which often form a very con-
spicuous intramarginal Herve. Many of the species are unfortunately very imper-
fectly known, and we are by no means satisfied with the diagnoses given, our materials
not being sufficient to enable us to form an opinion of the amount of constancy of
the characters on which we have relied. "We therefore recommend a careful study
of the floral organs of these plants to those botanists who may have an opportunity
of observing them in a living state. Goniothalamus appears to be entirely an Asiatic
genus. Several species occur among Coming's Philippine plants, and others will
probably yet be met with in the Malayan Archipelago.

1. G. Wightii (H.f. et T.) ; foliis lanceolatis subtus pallidis gla-
- briusculis, pedunculis axillaribus solitariis.  Wall. Cat. 9009 !
HAJB. In montibus Travancor ad Courtalam, WigM!  (y. $.)

Arbor? Eamuli graciles, nigricantes, rugulosi, glabri ; partcs novelise fusco-pu-
bescentes. "Folia utrinque acuta, 3-5 poll, longa, f-l-J- lata, petiolo 2-3 lineas
longo, tenuiter coriacea, subtus pallida (in sicco flavescentia), glabra vel juniora
sparse pnberula, minutissimc pellucido-punctata. Pedunculi ^-1-pollicares, sub-
clavati, basi bracteis pluribus oblongis minutis puberulis distiche imbricatis muniti,
supra medium braeteola parva rotundata amplectente decidua. Sqpala ovata, vix
acuta, extus puberula, fere $ poll, longa. Petala exteriora f-poll., ovalia vel ovata,
obtusa, breviter et late unguiculata, basi intus areola oblonga notata, utrinque fusco-
scriceft; interiora % poll, longa, ovata, late unguiculata, in mitram coalita, lamina
late trapezoidea, acuta, extus fusco-sericea, intus apicem versus sericea, cajterum
glabra. Torus truncatus. Ovaria dense aureo-strigosa, stylo oblongo apice dilatato
compresso rctuso dimidio longiora. Carpella calyce persistente suffulta, pedicello 2
lineas longo stipitata, oblonga, -f-pollicaria, atro-fusca, glabra.

The style of this species is shorter and broader than that of those described be-
low. In this respect it agrees with G. macrophyUus, Blume, the original species of
the genus.

2; G. salicinus (H.f. ct T.) ; foliis anguste lanceolatia basi acutis
apice in acumen plerumque obtusum longe angustatis, floribus paullo
supi-a-axillaribus semipollicaribus, petalis exterioribus angustis lineari-
bus tomentosis.

HAB. In Zeylania ad montem "Adam's Peak" dictum, Walker! 

Xtamutt graciles, foliosi, cortice ruguloso nigricante ; partcs novelise fusco-tomcn-
tossc. Folia 3-4,^ poll, longa, -J-l lata, supra glabra, subtus sub lente sparse pu-
bescentia; petioli vix -J-poll., pilis atro-fuscis strigosi, dcmum glabrescentcs. Pedi-
cetti $ poll, loufi, solitarii, pilis atro-fuscis strigosi, a basi ad medium bracteis 8-4
minutis oblongis acuminatis muniti. Sepal a ovata, uciuninata, dense strigosa, |-
poll. Petala exterioi*a -^-poll., liucari-triaugularia, iutcviora dimidio breviora. Ovaria
pauca, 7-10, dense fosco-strigosa ; stylo subulate,

3. G. Thwaitesii (Il.f. ct T.) ; foliis oblongis breviter et obtuse
acuminatis, pedunculis axillaribus petioles triple superantibus, floribus